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ViewSonic Va1912wb 3 Service Manual

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        Confidential - Do Not Copy     VA1912w-3_VA1912wb-3 
    10. Black Box 
    Test Signal: 1280*1024@60Hz
     
    Test Pattern:   
     
    Window standard pattern 
    Inspection Item: Bright Dot, Line Defect & Power 
      11. RED 
    Test Signal: 1280*1024@60Hz
     
    Test Pattern:   
     
    Full Screen Red   
    Inspection Item: Bright Dot,  Partial & Line Defect 
     
    12. Green 
    Test Signal: 1280*1024@60Hz
     
    Test Pattern:   
     
    Full Screen Green 
    Inspection Item: Bright Dot,  Partial & Line Defect 
      13. Blue 
    Test Signal: 1280*1024@60Hz
     
    Test Pattern:   
     
    Full Screen Green 
    Inspection Item: Bright Dot,  Partial & Line Defect 
      14. Gray_Scale_0-100_V64 
    Test Signal: 1280*1024@60Hz
     
    Test Pattern:   
     
    Vertical 64 (256) Gray Scale (Right  → Left ,From 0 to 100% White) 
    Inspection Item: Line Defect & Function Defect   
     
      15. Function Test Display pattern 
     
    Item Pattern  Description  Remark 
    1  Gray_Scale_0-100_V  Vertical 64 (256) Gray Scale (right
    →left ,From 0 to 100% White) 
    Figure 1 
    2  Gray_Scale_0-100_H  Horizontal 64 (256) Gray Scale (up
    →down ,From 0 to 100% White) 
    Figure 2 
    3 Black  Full Screen Black  Figure 3 
    4  Red  Full Screen 50% Red  Figure 4 
    5 Green  Full Screen 50% Green  Figure 5 
    6  Blue  Full Screen 50% Blue  Figure6 
    7 White Full Screen White Figure7 
    8 Black_Tile  Black Tile Under White Background  Figure 8 
      
    						
    							
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        Confidential - Do Not Copy     VA1912w-3_VA1912wb-3 
     
      
    Figure 1  Figure 2 
      
    Figure 3  Figure 4 
      
    Figure 5  Figure 6 
     
     
    Figure 7  Figure 8 
     
      
       
    						
    							
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    BIOS update procedure 
     
    Mstar ISP Tool User Manual   
     
    Setp1: 
    Take the cable of Print Port to connect Print Port of PC and Print Port of fixture(and EDID burn in the same fixture) to connec t 
    VGA Cable between D-sub of fixture and D-sub of AD Board of monitor ,the monitor must be turned on the power 。 
     
     
       
     
    Step 2 : 
    Open ISP Tool 
     
     
     
      
    						
    							
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        Confidential - Do Not Copy     VA1912w-3_VA1912wb-3 
    Step 3 : 
    Press ”connect” into ISP mode ,display the model of Flash ,The dialog of figure is displayed “Device Type is Pm25LV512” 
    then press ” 確定”。  
     
     
    Step 4: 
    Press ”Read” then enter as below figure ,then press
      to down load the program of BIOS (*.bin) 。 
     
     
    If down load BIOS that is succe ssful as below figure then press” 確定”。  
     
      
    						
    							
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        Confidential - Do Not Copy     VA1912w-3_VA1912wb-3 
    Step 5 : 
    Press ”Auto” into below figure that display the value of BIOS Checksum below figure is displayed “0x1626” then press ”Run” 
    to execute the BIOS procedure 。 
     
     
     
    The BIOS procedure is displayed the message ”V erify OK” that the BIOS procedure is successful。 
     
     
     
    Step 6 : 
    Press ”Dis Con” then leave the mode of ISP 。 
     
       
    						
    							
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    Step 7: 
    When select ”ReConnect” and press “Run” th en repeat to connect the mode of ISP into next the action of BIOS procedure 
     
     
     
     
      
    						
    							
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        Confidential - Do Not Copy     VA1912w-3_VA1912wb-3 
    Packing For Shipping And Disassembly Procedure 
     
    Packing For Shipping 
    1. Packing Procedure 
     
    1.1  Paste protection film to protect the monitor. (Figure 1) 
    1.2  Put the monitor in the PE bag and seal the bag with tape. (Figure 2) 
     
     
     
     
     
     
     
     
     
     
     
     
     
     
    1.3  Put the cushions on the monitor. (Figure 3) 
    1.4  Place the monitor into the carton and then put all the accessories  into the carton. As last, close the carton and seal it with 
    tape. (Figure 4) 
     
     
     
     
     
     
     
     
     
    Figure 1 
    Figure 2 
    Figure 3 Figure 4  
    						
    							
    Monitor Assembly and Disassembly   
    1 Separate S
    tand Assy  
    1.1 Remove Stand Cover   
     
     
     
     
     
     
     
     
     
     
     
     
     
     
       
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
      Step 2 :
     
    Remove the Stand  Cover. 
    Step 5 :  
    Completed.  
    Step 3 :
     
    Loose and remove 4 screws  Step 1 :
     
    Remove the Seat Assy  
    Step4 :  
    Remove the Stand Assy   25 
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    2 Separate Rear Cover (Rear Case Assy)
     
         Separate Bezel hooks to take Bezel and Rear Cover apart.   
     
     
     
     
     
     
     
     
       
     
     
     
     
     
     
     
       
     
     
     
     
     
     
     
     
     
     
      Step 1 :
     
    Loose and remove 2 screws.  
    Step 2 :  
    Separate Bezel hooks to take   
    Beze l and Rear Cover apart.  
    Step 3 :  
    Remove Rear Cover.  
    Step 4 :  
    Completed.   26 
    ViewSonic Corporation
         Confidential - Do Not Copy     VA1912w-3_VA1912wb-3  
    						
    							
    3 Remove Power Board and 
    AD Board 
    3.1 Remove Metal Cover  
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
      Step 1 :
     
    Remove FFC from OSD Board.  Step 2 :
     
    Loose and remove 4 screws.  Step 4 :
     
    Remove 2 pieces of Backlight wires.  
    Step 3 :
     
    Lift up LCD module and remove bezel.  
      Step 5 :
     
    Remove 2 pieces of Backlight wires.   27 
    ViewSonic Corporation
         Confidential - Do Not Copy     VA1912w-3_VA1912wb-3  
    						
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